Test-Valgrind-1.19

Changes for version 1.19 - 2016-08-01

Fix : valgrind 3.1x will no longer be treated as valgrind 3.1.0, causing the wrong command line arguments to be used. Thanks Lucas Nussbaum and Gregor Herrmann from Debian for reporting and providing feedback (Debian bug 832833).

Fix : The number of callers is now capped at 24, as this is the maximum number supported by valgrind. An higher number of frames could lead to the generation of unusable suppressions in both old and recent versions of valgrind.